Abstract: The invention relates to a process for high-speed flame spraying of refractory wire and powder weld filler for the coating of surfaces, using at least two gas mix systems operating independently of each other, with which the wire or powder spray weld filler brought into the primary chamber is melted by primary heating flames arranged concentrically around a charging channel, accelerated with the resulting high-speed flame and conveyed through an expansion nozzle into a downstream secondary combustion chamber; the latter is streamed through while the molten plastic weld filler is carried along by the primary high-speed flame at supersonic speed, which runs into an axially centrally widened, downstream and water cooled secondary expansion nozzle, or into its bore, so that in the area of radially, axially and focusingly arranged secondary fuel gas-oxygen channels running into the secondary combustion chamber a partial vacuum area is produced and a hot gas mixture with low streaming pressures can be added, whereb

Abstract: The invention relates to a process for the coating of components, wherein a plastic-containing layer is sprayed onto the surface of the components. During spraying, at least one mixture component consisting of a material other than plastic is added directly to a plastic powder. The plastic powder and the mixture component are supplied separately and are separately adjustable.